Surface plasmon polaritons in the ultraviolet region
Abstract
We study a surface plasmon polariton mode that is strongly confined in the transverse direction and propagates along a periodically nanostructured metal-dielectric interface. We show that the wavelength of this mode is determined by the period of the structure, and may therefore, be orders of magnitude smaller than the wavelength of a plasmon-polariton propagating along a flat surface. This plasmon polariton exists in the frequency region in which the sum of the real parts of the permittivities of the metal and dielectric is positive, a frequency region in which surface plasmon polaritons do not exist on a flat surface. The propagation length of the new mode can reach a several dozen wavelengths. This mode can be observed in materials that are uncommon in plasmonics, such as aluminum or sodium.
Keywords
Cite
@article{arxiv.1711.08115,
title = {Surface plasmon polaritons in the ultraviolet region},
author = {E. D. Chubchev and I. A. Nechepurenko and A. V. Dorofeenko and A. P. Vinogradov and A. A. Lisyansky},
journal= {arXiv preprint arXiv:1711.08115},
year = {2018}
}